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정재후(J. H. Jung),백승우(S. W. Pack),안도희(D. H. Ahn),김광락(K. R. Kim),김시형(S. H. Kim),심준보(J. B. Shim),김가영(K. Y. Kim),김택진(T. J. Kim) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
A PRIDE cadmium distiller can distill cadmium and salt from a LCC(Liquid Cadmium Cathode) deposit in both an electrowinning and a residual actinide recovery equipments. The LCC deposit is a mixture of U/RE/Cadmium metal alloy covered with LiCl-KCl eutectic salt which are put in a alumina crucible. When the LCC deposit at the upper part of a distiller vessel is distilled at vacuum, the cadmium and eutectic salt are evaporated and condensed at the lower part and the U/RE metal powders remains. The PRIDE Cadmium distiller consists of distiller vessel, furnace, vacuum pump and control panel assemblies and its capacity is 10 kg-cadmium per batch in an argon cell. The distiller was designed for easy remote operation using MSM, BDSM and crane. Design of the distiller was checked through 3D simulation tests and improved through remote control tests using mock-up equipment. The PRIDE cadmium distiller shall be operated and repAred according to the remote operation and maintenance procedure. When this equipment was set up in PRIDE, the whole equipment was transferred by overhead crane and was set up at appointed spot of PRIDE argon cell after it was entered into argon cell through transfer lock. We derived operation of equipment and improved its device according to conservative assessment factors by accomplishing blank test related to operability test of driving part and process parameter for start-up test. Therefore PRIDE cadmium distiller after the blank test device was advanced and supplemented.
권상운,정경채,유재형,김응호,심준보,최종현 한국공업화학회 2000 응용화학 Vol.4 No.1
The technology on the transmutation of nuclear waste has been developed to reduce the long-term risks during the storage of the spent nuclear fuels. It was studied on the fluorination of cerium oxide to investigate the preparation of the fuel for transmutation reactor. Cerium oxide was reacted with hydrogen fluoride - hydrogen mixed gas to produce zirconium fluoride in the monel tubular reactor. Cerium oxide powders were converted completely to cerium fluoride in 40minutes at 300℃ and in 25minutes at 500℃. Among the various gas - solid reaction models, the phase boundary controlled model was most suitable for the reaction, it was calculated from the model that 16 hours are required to fluorinate the cerium oxide of 10㎜ diameter.